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Class Information
Number: 402/11
Name: Binder device releasably engaging aperture or notch of sheet > Pliant, deformable sheet retainer (e.g., cord, band, strap, etc.) > With means to apply tension thereto > Rack or screw type
Description: Device wherein the pliant sheet retainer is pulled taut by a element in the form of (1) a series of notches or (2) a continuous helical groove.

Patents under this class:

Patent Number Title Of Patent Date Issued
7794169 Bookbinding apparatus Sep. 14, 2010

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